Evaporator.



cierren STATES PATENTOFFICE? GEORGE HILLARD miieruuvniv;y orNEW YORK,NQY

To all whom it may/concern: i

Be it known that I, (iconen HILL/uni Bian-Y JAMIN, a citizen of theUnited States, re siding at New York, in the 'county and State of NewYo1'k,lu\vel invented certain new and useful Improvements inEvaporators, of

.sis

which the following is a specification.

Myinvention relates to evaporators of the type used on shipboard, anddesigned to separate iv'iitei\-fi'oiii` salt carried by the water.

In practieeit has-heen found that where evaporators are used uponvessels, for instance, torpedo boats, which `are subjected toconsiderable movement by 'wave influence, that the violent Aagitationofthe water in the evaporator causes the )vater to inx with the vaporand flow tothe condenser, or -in other words, causes the? evaporator toprime,

:with the result that instead of obtaining lwater containing not' toexceed one-half grain of salt per gallon, the water frequently Icontains from two-to three grains per gallon,

whichreiiders it unfit for drinking or steamin purposes. 4

n Patent No. 1,225,118 granted to F. T. Evanslon May 8, 1917, there isdescribed a Ymethod of superheating thc vapor awfter it leaves the eva'praten by which the salt which is carrie over by thevapor, underconditions specified, is eliminated, and in the drawing ofsutllrparte'ntthere isshown an evaporator and a separate 'superheater.:Y

In my improved construction, as illus` tratcd in the drawing of thisapplication, theevaporator `and the superheater are conii bined Withinone structure, which arrange- `iiaeit is not onl)r convenient buteconomical ijn the results obtained. VMy constructionA urthcrinifiolves` certain new features," as for instance', the design and`construction `of vthe heating coils, the design and-construction o theapparatus `for carrying the l'ieatingpr coils,

so that'they maybe supported within and readily withdrawii and supportedwithout the receptacle.: the construction of the dia#4 phragniintroduced betweenV the lower and up ier portions of the receptaclewherein the viifql-iris first divided Vand then subsequentlysuperheated. and also 'various otherl'feati'ires of construction whichwill be referred to in the specification v.and particularly pointed outin the claims.

Specification of Letters Patent. Ilaten'td Oct, 8, 1918,

Application filed June 27, 1917. Serial No. 177,211.

The accompanying drawin s will serve to Villustrate my invention, in vviicli Figure 1 is a vertical section. looking toward the right, taken onthe line l-I of F ig. 3.

Fig. 2 is a perspective view of one of the heating units.v Q

Fig. 3 isa vertical section taken on the line III-III of Fig. 1. n i

Fig. 'et is aT vertical section and partial elevation, showing thereceptacle and the doors, heating unit-s and supports for the heatingunits removed from the receptacle. Fig. 5 isasection on the line V-V ofFig. 1 looking downward. 1

Referring to the drawings. V6A indicates the receptacle. The yreceptacleis divided into two chambers 7, which isthe largest,

and 8-which isvtlie smallest and is super* posed on 7. Situated betweenthese. chambers is a shield or diaphragm 9, theupper surface of which isinclined `toward the center, and connected to a pipe 1,0 Whichleads outof the ieccptacle,best shown in Fig. 3. The chambers, 7 and 8 areprovided with doors 11 and 12. The door 11 is supported onrollerslfwlichgare situated outside of the receptacle .13. `Connected to theinner side of thedoors Il and 12. are heating uni-ts 1 4 (see Fig. 2l.These heating units consist i of a plurality of elements eachconsisting` of tube` pinched in opposite directions, sdjthat- -thehorizontal axes of the pinches willbeat l.righ-t anglesN along thelength 4,of the tribe l (see Fig'. 5). In Fig. Qtlic firstpincli is i`\`dieatcd at 17,-the second at 18',l and so on.

'Ehe object of this construction of tubes, isl

to n iake a passage forthc steam which shall be narrow but broad, thetubes changing their long` diameter successively along the portions inavlieiornied integrally' seV tube thereby facil-itatinv the transfer ofheat from' the steam to the Water in the reeeptacle. The heatingelements 'are placed one behind the other, and connected by ni'eans'opipes 19 which are closed at one,

end by a screw threaded cap 20, and r0- vided with side openings 21arrange to communicate with the interior of the, horizontal heads 15 ofthe heating elements. The other ends of pipes 19 .are provided withscrew threads 22 which engage corresponding screw threads formed intubular castings v23. Each .of the castings 23 is provided with a flange24 adapted for attachment to the outer side of the door'll. The heatinVunits are also supported'by means of ro s 25 which sleeves 26 and throuh eyes 2 7 in extensions` 28 of the heads 15. he construction of theheating unit in the chambers 7 and 8 is the same, and the same figures'apply.

The door 1'1 is secured to the receptacle' by means of bolts 29. Thedoor 12 in chamber 8 issecued'to the receptacle bythe bolts 30. On the4front of the door. 12 is {a-"pro'ection 31 having an e e, whichisadapte to coperate 'with alin f 32 carried by ar'in 33, pivot'allymounted "at 34 )n' the "tpifthe chamber' 8. When thedoorjmllglvjtsgrernoved from thechamber 7, ais aait-led by lum rollers13; when the'doorj12 is removed from Vthe chamber 8 it# is carried bythe arm 33- and link 32. When the doors are removed with the heatingunits 14 attached, the intrior of the receptacle can be easily cleaned,and* scale cfr salt deposit removed from the lieatipg"units.

Connected to" the top of'the chamber 8 and to the' pipe`19 connectedto'heads 15 olfv the heating unit in such chamber, is; a'pipe 35,through which steam Amay be introduced to zthe heating u'nit in thechamber-8. 3 6 is a similar pipe through which thel steam'lnnyv bepasse(1'1.vl1cnI leaving `the heating unit .in

the chamber 8. .37 is a union connecting pipe 3G to ai ipe 3'8 connectedwith the heating,

unit -in c 'iamber 7, and 3*.) is a pipe through which steam leaving theheating unit in chamber 74 may be passed.

The operation of my device will be readily understood: Steam at-hightemperature is introduced -i'nto the receptacle throughthe l'35",'1passes through "the heating-unit in ftf'f'hcating' unit in.chamber 7,'tl'icncc'by pipe 39 Aout of the receptacle. The steamenter-` f tllia-chalutier' 5 w irc yto a' much l ing the chambeiB' is athigh temperature,

be 'taken' out-of thc receptacle throughlhe K5. A,

pass through spacing v unit 'eas ily .scaled without liabilityoffinjurin g the tubes.

- paratus,. comprising a containinm' diaphragm of l ess diarjnotcr thanti g s diameter of :the shell, interposerlto divide 125 said shell in totwo izli-amborez, ahcati'ng .unit in cach ohainbf-l-,and moans forconnecting- As it is impossible to superheat vapor in the presence ofwater, the diaphragm 9 is interposed bot-woon the W ater in the chamber7 and the vapor in chamber 8, which diaphragm, acting in conjunctionwith the vapor passing through the passage 40, serves to'creute aneffect-ive separation of the water in chamber7 and the yapor'n chamber8.

It will be observed that the saltwater 4l in chamber 7, is shown ascarried to the top of the head of the heating unit, in this chamber,thereby practicallyv covering the heating unit, and thus takingadvantage of all of the heat units passing through the charnber. .Thediaphragm plus the'vapor pressure in chamber 8, servos to prevent thewa- `and withdrawn through the ipe 45.

Among the advantages of t elconstruction describe is,'that theheavydeposit-of salt may be allowed to accumulate on the sides -and bottomof'thechamber 7 and also on the top of the diaphragm 9, which acts asianon-v gonductor of heat withoutin any wise interfering with the movementin andout of the doors .which sup' ort theheating unit. The

construction of t e heating units is such that the maximum value of theheat transmitted is obtained, and the exterior surface of lauch x The@aussuchen as a whole issie-h, that the 'whole of' the tubes-may beimmersed in the salt watcr',"th11s Apreventing thev setting f-re'e ofchlorin gas, and without danger of 105 priming.

Having thus described my invention, I

claim:

1. An irriprovement'in anevaporating apparatus, `comprising acontaihing.'shell, 'a 110 diaphragm dividing-said'- lshell into two.

chambers, a heating unit for each chamber,v each heating unit consistingot a plurality of horizontally disposed head II )ortionsandinterposed,vertically disposed tubes, .said tubes pinched atintcrvalsalong .sections 'of their length, saidfpinchings vhaving their long axesatvright angles to adjacent pinch- 4 ings, and moansforoonncctin-gthcheating units together in serios located exterior to' 120 ihi. containingshell. y Y 2. Au improvement in au evaporatingapf- Yhell e the heating units together-in series exterior to fbccontainipgshell. y

' 3. Animprovcmq-.nt'in an evaporating 'ap- 180 angehen.

Lacona,

viding lSaid hell into.` twov chambers, a heating unit in each of said`5 chambers mounted upon the removable doors,

meansy for` connecting the heating units to` gather in 'series exterior`to bhe'oontaining shell and separate meansfor` snpport'm 'the doors andhoatingnnitslwhen removed vgroin 4; "An improvement inanevaporatingapparatus, comprising containing shell, a dia- Phi-agiodividing'sfaidshelilainto two cham- J'ere, a removable door foreachchamber, a,

heafing unit in each chamber` connected to a annisupported-byy the innerside of the doors, a `s'v`v`ir1gi11g support for the'door and heatingnn'it ofthe' upperI chamber looaed exterior to the shell, and a wheeledsupport for the locatedi'exterior to the shoii.

- 5. A heating unit compiisng a plurality' of'oleme'nto, each elementonsisting oi b of zontally disposed head portions-o1. mami folds andaserios ofintexposed vortoaily disposed tubes, oooh tube pinched atintenA vals along 'sections of its lengthm Said pinch@ ings4havingthoizf iong al," rig-:ht angio Vheating unit ofthe iowor ofhambor2Q ,to adjaoent pinohings, together with moana for conneotmgthoplurality of ooments to 3o gether. l

In tesblmonv whereof l aix mi; .1 1 3 c ture, 111 the presence of twowimoes,

GEORGE HILLARI) ENJAMHJ. i Witnesses:

Hamon Koomen, LESTER Bomboniera

